Module 2 Flashcards
What are Hosts
A Host is when all computers connected to a network that participate directly in network communication are classified as hosts
What can Hosts act as
hosts can act as a client, a server, or both
What are Clients
Clients are computer hosts that have software installed that enables the hosts to request and display the information obtained from the server
(Clients) Email
The email server runs email server software. Clients use mail client software
(Clients) Web
The Web server runs web server software. Clients use browser software
(Clients) File
The file server stores corporate and user files in a central location. The clients devices access these files with client software
P2P
peer-to-peer
What type of network is a P2P network
In small businesses and homes, many computers function as the servers and clients on the network.
How to larger P2P network
Multiple PCs can also be connected to create a larger P2P network, but this requires a network device, such as a switch, to interconnect the computers.
What is the main disadvantage of a P2P network
P2P environment is that the performance of a host can be slowed down if it is acting as both a client and a server at the same time.
The 4 advantages of peer-to-peer networking:
- Less complex
- Lower cost because network devices and dedicated servers may not be required
- Can be used for simple tasks such as transferring files and sharing printers
- Easy to set up
The 4 disadvantages of peer-to-peer networking:
- No centralized administration
- Not as secure
- Not scalable
- All devices may act as both clients and servers which can slow their performance
What does a P2P applications require
P2P applications require that each end device provide a user interface and run a background service.
What can a computer with server software do?
It can provide services simultaneously to one or many clients.
Additionally, a single computer can run multiple types of server software.
A single computer can also run multiple types of client software.
2.1.5
network infrastructure contains three categories of hardware components, what are they
- End devices
- Intermediate devices
- Network media
2.2.2
List end devices
Desktop Computer, Laptop, printer, IP phone, wireless tablet, Mobile device, TelePresence Endpoint
List Intermediate devices
Wireless Router, LAN Switch, Router, Multilayer Switch, Firewall Appliance
List the 3 Network Media
LAN Media, WAN Media,Wirless Media
ISP
Internet Service Provider
What is an ISP
An ISP can be the local cable provider, a landline telephone service provider, the cellular network that provides your smartphone service, or an independent provider who leases bandwidth on the physical network infrastructure of another company.
What does ISP do
Each ISP connects to other ISPs to form a network of links that interconnect users all over the world.
What is the primary medium that connects the internet backbone
fiber-optic cable
2.3.1
ISP Connections
2.3.2
What is Cable
internet, provided by cable TV service, uses the same coaxial cable for data and television signals. It offers a high-bandwidth, always-on connection. A cable modem separates internet data from other signals on the cable, providing an Ethernet connection to a computer or LAN.
DSL
Digital Subscriber Line
What is DSL
is a high-bandwidth, always-on internet connection using a special modem to separate DSL and telephone signals. It runs over a telephone line with three channels: one for voice calls, allowing simultaneous internet use; a faster download channel; and a slightly slower upload channel. DSL quality and speed depend on phone line quality and proximity to the central office, with greater distance resulting in slower connections.
What Did I Learn in this Module
2.4.1
